A) Home
The User Profile Icon is represented by an icon of a person. It shows a 'Register' and 'Sign In' dialog to users who are not yet logged in. On the other hand, once a user logs in, it would show the basic information about their settings.
The Language Icon is represented by an alphabet icon. Users can access the language settings of the website by clicking on this icon. This feature is especially useful for website that are localized for different countries and regions.
The Theme Icon is represented by a sun and moon icon or a color palette. Users can access the theme settings of the website or application by clicking on this icon, where they can switch between light and dark themes. This feature is especially useful for users who may have difficulty reading light text on a dark background or vice versa.
In conclusion, the User Profile Icon, Language Icon, and Theme Icon are important components of any website or application. They allow users to access important account settings, change the language of the content, and switch between light and dark themes for improved readability.